Radial gradient contact lenses

Details Radial gradient contact lenses Radial gradient contact lenses

1997-11-05

2000-07-18

Epps, Georgia

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

359652, 359653, 359654, G02C 704, G02B 300

Patent

active

060897112

ABSTRACT:
A radial gradient contact lens is provided. The methodology described above allows the parameters of the lens and of the radial gradient profile to be chosen to improve the vision and the comfort of the wearer. The lens can be made thinner and the optical performance remains improved as the CL moves around in the eye. The improved vision leads to higher contrast when the iris of the eye is fully open as it is under low light level conditions. The use of an anamorphic lens consisting of an elliptical index profile for use in correcting astigmatism is described.

REFERENCES:
patent: 4580882 (1986-04-01), Nuchman et al.
patent: 4601545 (1986-07-01), Kern
patent: 5220359 (1993-06-01), Roffman
patent: 5530491 (1996-06-01), Baude et al.
G.A. Fry, "The Eye and Vision", chapter1 in "Applied Optics" vol. 2 ed. by R. Kingslake pp. 1-27, 1965.
Y. Koike, et al., "Gradient-Index Contact Lens", Applied Optics, vol. 34, No. 22, Aug. 1995.
M. Harrigan, "Some First Order Properties of Radial Gradient Lenses compared . . . ", Applied Optics, vol. 23, No. 16, Aug. '84.
J. Benshop and J. Braat, "Gradient Index Objectives for CD Applications", Applied Optics, vol. 26, No. 7, Apr. 1987.

Affiliated with

Also associated with

Rating

Radial gradient contact lenses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radial gradient contact lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial gradient contact lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2029510